Please help - I tried to change the oil in my 420SEL and after removing the
bolt and filter I took out the filter and the oil in the housing did not
drain. I also drained the oil from the oil pan, and the oil in the filter
housing still did not drain. Is this normal or are the hoses clogged?

Roman

How much oil was in the filter area?
You should....undo the cap on the valve cover,
take out the drain plug in the pan, make sure to get the oil seal off
while that drains take out the filter wipe out the filter housing, replace
the filter
seal everything back up remembering to put all the new seals on
fill up with oil
close valve cover cap
start engine.
Richard
"romansek" <romansek (AT) comcast (DOT) net> wrote

Approximately 1/3 qt. of oil is left in filter housing after removing filter
cartridge. I have MBZ diesels and always the oil drains from the filter
housing. This is a surprise to me that gas engines have some kind of valve
which prevents oil to drain. I removed cap on the valve cover and drain
plug.
Thanks
Roman
"marlinspike" <rishayegan (AT) davidson (DOT) edu> wrote

Mine drains, except for just a little bit in the side opposite of where it
would drain. I don't know what's up with yours.
Richard

"romansek" <romansek (AT) comcast (DOT) net> wrote